Ideal logic + combi 30

[Aire]

That install hurts my eyes

 

[Jacko]

System showing 1.5 bar magna clean lid opened bottom valve open, no water coming out of magna clean

 

[Jacko]

That install hurts my eyes

Not mine, I only do maintenance

 

[Riley]

Sorry dhw works fine...

Sorry that’s my fault for not reading properly

 

[Aire]

I'd be tempted to cut the pipe below the elbow circled in red. Then check the pipe leading up to the magna clean. It is unusual for a 22mm pipe to block though. There isn't anything stupid like an isolation valve under the floor in the cupboard is there?

 

[Mastermixlee]

And the magnacleanse valve is definitely open and not blocked. Easy way to tell would be loosen the magnclean valve nut at the bottom and move slightly off the olive. I've had those snap internally... Though that was on the old ones to be fair.

 

[townfanjon]

One valve is turned off !!

 

[Aire]

One valve is turned off !!

he's got the cap off so it shows what he's taking about with the bottom valve not allowing water through.

 

[Jacko]

I'd be tempted to cut the pipe below the elbow circled in red. Then check the pipe leading up to the magna clean. It is unusual for a 22mm pipe to block though. There isn't anything stupid like an isolation valve under the floor in the cupboard is there?

I guess you forgot your attachment???

 

[DGT plumbing]

How about linking out the heating system entirely to rule out the boiler. I know it's work but you'd know for sure then.

 

[Aire]

Sorry, here you go

 

[Jacko]

Sorry, here you go

View attachment 37655

Yeah a good shout, but like you said I am thinking maybe someone has tampered with a gate valve somewhere or another...... although the customers swears blind they haven’t.... the weird thing is I went to the property 5 days ago as 1 radiator wasn’t working, I released the trv pin and it warmed up immediately!!!!

 

[Jacko]

And the magnacleanse valve is definitely open and not blocked. Easy way to tell would be loosen the magnclean valve nut at the bottom and move slightly off the olive. I've had those snap internally... Though that was on the old ones to be fair.

I pulled the magna clean pushfit fittings off and checked to see the valve open and close

 

[Jacko]

How about linking out the heating system entirely to rule out the boiler. I know it's work but you'd know for sure then.

Don’t understand sorry

 

[ShaunCorbs]

Arnt them valves on the boiler closed I’ve had a few where the handles round and don’t do anything

 

[Riley]

Don’t understand sorry

Think he means cut f & r coming off boiler and loop them to see if that alone heats. If it doesn’t it’s inside the boiler

 

[Jacko]

Arnt them valves on the boiler closed I’ve had a few where the handles round and don’t do anything

Removed both valves and checked they were both open

 

[DGT plumbing]

Don’t understand sorry

cut into the flow & return low down and link them together to make a very small circuit. If the link doesn't get warm then the blockage is in the boiler.

 

[Jacko]

By the way...... what a brilliant forum, the support is fantastic....

 

[Aire]

cut into the flow & return low down and link them together to make a very small circuit. If the link doesn't get warm then the blockage is in the boiler.

But that wouldn't explain why he's getting no water through the bottom valve leading to the magna clean.

 

[Jacko]

But that wouldn't explain why he's getting no water through the bottom valve leading to the magna clean.

Exactly....... Accrington Stanley lol

 

[DGT plumbing]

But that wouldn't explain why he's getting no water through the bottom valve leading to the magna clean.

Oh yeah forgot about that. Got to be a blockage in the system then. Most likely where Craig said in that elbow with the red ring round it.

 

[Mastermixlee]

Think you said you'd already done few bits of this but I'd approach that job in following way.

First walk the system and see if there's any valves on the ch circuit anywhere that could of been switched off in error (sometimes where it was a conventional boiler with cylinder in airing cupboard valves get left in e.g. Summer valve)

From there I'd drain the boiler and remove the 2 isolation valves and ensure they are 100% opening and that they opening all the way.

Then I'd follow the magnclean valves the same which again I think you've done.

If possible to identify last rad on return to boiler. Isolate and drain. Then attach hose or just into a rubble bag open the return side valve and see if you get the correct flow of water coming out. If yes then the fault definitely lies between the magnclean valve point and the return of the last rad.

Once identified there's a few options.

With system drained connect into the pipe at magnaclean pipe with a 22mm compression fitting (in place of the bottom magnaclean valve) going down to an 8mm copper pipe (or appropriate fitting made up to fit a footpump up to... 8mm pipe works perfect if you've got some.)

Then pump up the pressure and it can clear by pumping up to a high pressure. Obviously there is a risk with this... But generally the risk is a joint popping and needing re-piping. . But that's one of the other options anyway so I'd try this first after checking all accessible sections of pipework.

 

[Jacko]

Well I will try that tomorrow...... hopefully a positive update to follow

 

[ShaunCorbs]

What about the return filter in the boiler ?